Adjustable exhaust for locomotives.



Y PATENTEE AUS. 1. 1905. '0. E.v LEWIS E J. SMTTE.. ADJUSTABLE EXHAUSTEURLowvwTnEs.`

' APPLIUATION FILED NOV. 23, 1904.

'z SEEETSSHEET 1.

No. 700,080. f PATBNTB AUG. l. 1905.

f 0. H. LEWIS 0 J. SMITH.

ADJUSTABLE EXHAUSTFoR L000M0TIVBS.

APPLICATION FILED NOV. 23. 1904.

2 SHEETS-SHEET 2.

. `muulmllllllinbouw,

IINITED- STATES PATENT CEEICE. l

CHARLES H. LEWIS ANDl .IEREMIAH SMITH, or WASHINGTON, DISTRICT oFCOLUMBIA. f

ADJUSTABLE EXHAUST FOB LocoMoTlvEs.

Patented Aug-` 1, 1905.

Application filed November 23, 1904. Serial No. 234,032.

vand the mainobject of the invention is the provision of a series ofvarious-sized nozzles which are adapted to beinterposed below thesmoke-stack so as to regulate at an instant the diameter of the exhaustwhich passes through the smoke-stack. It is a known fact that wherethere are no means of this character provided in locomotives that ingoing up grades orin starting pressure is so great that it becomes, asit were, congested in the exhaust to such an extent as to effect thepressure in the cylinders and practically cause a back pressure. It hastherefore been our object to provide a means whereby this difliculty canbe overcome by throwing in various-diametered nozzles, which control thediameter of the exhaust. n

To carry this invention into effect, we provide a means which is mountedinthe forward portion of the engine belovvthe smokestack, but readilyoperable from Vthe exterior and the cab lofthe engine, whereby a series`a locomotive shown in outline with our invention in operative positiontherein. Fig. 2 is an enlarged detail sectional view of our inventionremoved from the locomotive. Fig. 3 is a top plan view thereof. Fig. 4is a front elevation thereof, partly in section; and Fig.

5 is a bottom plan view showing the mechanislrn for operating the diskcarrying the noz- Referring to the drawings, A designates the forwardportion of the locomotive, which is provided, as usual, with thesteam-exhaust pipes B and the smoke-stack C, our invention D beingmounted, as clearly shown therein.

` Our invention consists substantially of the l cylindrical support 1,which is provided with the supporting-arm 2 at its top and to one sidethereof and with the guide-plate 3 at its top to the opposite sidethereof'.V The supporting-arm 2 is provided withopenings 4and 5, theopening 4 of which is adapted to receive the shaft 6, which is threadedupon its lower end, headed upon its upper end, and provided with theintermediate shouldered portion 7 and smooth bearing portion 8, thesmooth bearing portion 8 being adapted to engage theopening of ythe arm,while the shouldered portion lits within the rectangular opening Vof thedisk 9. The said disk 9 rests upon the upper surface of the arm and .hasits periphery l() 'mounted in the recess 11of the guiding-plate 3, sothat the disk may'revolve and be kept in proper a-linement. This disk isprovided with a series of openings 12, in which are mounted the nozzles13 14 15 16, each one of which is of different diameter, the purpose ofwhich will presently appear.

Mounted upon the lower portion of the shaft 6 is -a small pinion or gear17, which is adapted to mesh with. thetoothed segment 18, carried uponthe pivot 19, mounted in the opening 5 of the arm,.eac'ln outer end 2Oof the disk. In the periphery of this disk and I opposite the centralpoints of each one of the openings therethrough we provide a triangularnotch 25 in order that the openings may be stopped so as to be inalinement with the smoke-stack of the engine, by means of thespring-actuated stop-26.

The support l is of course connected with v the steam-exhaust sothatpwhen the nozzles are in alinement with the upper end of the,exhaust vthe volume of steam passing through the smoke-stack islimited'in diameter accords ing to the diameter of the nozzle. Thus thevolume can be enlarged or reduced, as may be desired, by simplyoperating the lever in the cab so as to revolve the disk carrying thenozzles. To prevent escape between top of l and disk, we employpacking-ring 27.

From the foregoing description, taken in connection with the drawings,it is evident that We provide a device of this character embodying novelfeatures of construction and combination' of parts which render thedevice thoroughly eiiicient and practical for the intended purpose.

In starting a train you can adjust the nozzle to the largest diameter,which will allow the engine to clear herselfl quicker and be less Severeon the lire as` in a smaller nozzle. It will alsocause less-noise andlessdirt in starting away from station. After the engine is undervheadway the nozzle can be adjusted to suit eut-oli of the engine. Forinstance, if engine. is using tive-inch nozzle at eight-.inch cut-ofthigh-speed engine, it can be readily adjusted to. suit a eleven ortwelve inch cutoff, which will give power to. the. engine and be asaving to fuel', as a five-inch nozzle at eleven or twelve. inch cut-0Hwould be too severe on re. In drifting at a high rate of speed thenozzle can be adjusted to the largest diameter, which will allow enginetofree herselif of any vacancy that forms in the cyl-inders, whichv willno doubt give-better results.

W hat we claim as new, and desire to secure by Letters Patent, is-

1. In combination with a locomotive having av smoke-stack and anexhaust-pipe below and in line with the. smoke-stack, of a rotary diskprovided with a series of diiferent-diametered nozzles adapted to alineone at a time with the. mouth of the exhaust-pipe for limiting thevolume of exhaust therethrough and means controllable from the cab foroperatsaid` disk.

2. In combination with a locomotive having a smoke-.stack and anexhaust-pipe below and* in, alinement with said; smoke-stack, of arotarydiisk carrying a series of different-diametered nozzles mounted atthe mouth of the exhaust-pipe, and mechanism for revolving the disk so.as to. cause one at a time to be in alinement with the exhaust-pipe.

3, In combination with a locomotive having a smoke-stack and anexhaust-pipe in alinement therewith., of anI adjustable exhaust thereforconsisting of a support, a disk provided. with. a series of openingsmounted rotatably upon. the said support, a series ofdiferent-diametered nozzles removably secured to said` disk and inValinement with said opening and.` mechanism. for revolving the disk sothat one nozzle at a time is in alinement with the smoke-.stack and the.exhaust-pipe.

4f. In combination with a locomotive havinga smoke-.stack and anexhaust-.pipe in alinement therewith, of an adjustable exhaust thereforconsisting of a support, a disk provided with a series of openingsmounted rotatably upon the said support, a series oi dii"-ferent-diametered nozzles removably secured to said disk and inalinement with said opening, and means for revolving the disk, so thatone nozzle at a time is in alinement with the smoke-stack and theexhaust-pipe, said means being' controllable from the cab of the engine.

5. In combination with a locomotive having a smoke-stack and anexhaust-pipe in alinement therewith of an adjustable exhaust therefor,consisting` ot' a support, a disk provided with a series of openingsmounted rotatably upon the said support, a series of dii-Jrerent-diametered nozzles removably secured to said disk and inalinement with said opening, a pinion carried by the disk, a toothedsegment meshing with said pinion and mechanismfor operating the segmentto revolve the disk.

6. In combination with a locomotive having the exhaust from thecylinders terminating in a single stack or pipe, ot' means for adjustingthe iiow of exhaust from said pipe, consisting of a circular diskrotatably supportedat the upper end of said pipe, said disk beingprovided with a series of different-diametered openings adapted to alineone at a time with the upper end of said pipe, and mechanismcontrollable from the cab for rotating said disk to cause one opening ata time to aline with said pipe.

7. In combination with a locomotive having the exhaust from thecylinders terminating in a single stack or pipe, of means for adjustingthe flow of exhaust from said pipe, consisting of a support formedintegral with the rear upper end of said pipe, a disk rotatablysupported by said support and provided with a series ofdiierent-diametered openings adapted to aline one at a time with theupper end of said pipe, and mechanism controllable Jfrom the cab foroperating said disk.

8. In combination with a locomotive having the exhaust from thecylinders terminating in a single stack or pipe, of means lor adjustingthe iow of exhaust from said pipe, consisting' of a su p port formedintegral. with the rear upper end of said pipe, a shaft passing throughsaid support of the pipe, a disk carried by the upperend of said` shaftprovided with a series of ditlerent-diametered. openings adapted toaline one at a time with the upper end oi said pipe, a pinion carried bythe lower end of said shaft, a toothed segment journaled below saidsupport in engagement with said pinion whereby the disk is rotated, andmechanism controllable from the cab for operating the segment.

9. In combination with a locomotive having the exhaust from thecylindersterminating in a single stack or pipe, ot means for adjustingthe iiow of exhaust from said pipe, consisting ing the exhaust from thecylinders terminating in a single stack or pipe, of means for adjustingthe iow of exhaust from said pipe, consisting of a support formedintegral with the rear upper end of said pipe, a disk rotatablysupported by said support and provided with a series ofdilerent-diametered openings adapted to aline one at a time with theupper end of said pipe, removable nozzles secured in the openings ofsaid disk, and mechanism controllable from the cab for operating saiddisk.

l1. In combination with a locomotive hav.- v

justing the iow of exhaust from said pipe,

'consisting of a support formed integral with the rear upper end of saidpipe, a shaft passing throughsaid support of the pipe, a disk carried bythe upper end of said shaft provided with a series ofdiHerent-diametered openings adapted to aline one at a time with theupper end of said pipe, removable nozzles secured in the openings ofsaid disk, a pinion carried by the lower end of said shaft,a toothedsegment journaled below said support in engagement with said pinionwhereby the disk is rotated, and mechanism controllable from the cab foroperating the segment.

In testimony whereof We aliix our signatures inpresence of twowitnesses;

. CHARLES H. LEWIS. J EREMIAI-I SMITH.

Witnesses:

EMORY H. BOGLEY,

B. C. RUST.

